1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.quicksearchbox;
18 
19 import com.android.quicksearchbox.util.NamedTaskExecutor;
20 import com.android.quicksearchbox.util.NowOrLater;
21 
22 import android.app.SearchManager;
23 import android.content.ComponentName;
24 import android.content.Context;
25 import android.content.Intent;
26 import android.graphics.drawable.Drawable;
27 import android.net.Uri;
28 import android.os.Bundle;
29 import android.os.Handler;
30 import android.util.Log;
31 
32 /**
33  * Abstract suggestion source implementation.
34  */
35 public abstract class AbstractSource implements Source {
36 
37     private static final String TAG = "QSB.AbstractSource";
38 
39     private final Context mContext;
40     private final Handler mUiThread;
41 
42     private IconLoader mIconLoader;
43 
44     private final NamedTaskExecutor mIconLoaderExecutor;
45 
AbstractSource(Context context, Handler uiThread, NamedTaskExecutor iconLoader)46     public AbstractSource(Context context, Handler uiThread, NamedTaskExecutor iconLoader) {
47         mContext = context;
48         mUiThread = uiThread;
49         mIconLoaderExecutor = iconLoader;
50     }
51 
getContext()52     protected Context getContext() {
53         return mContext;
54     }
55 
getIconLoader()56     protected IconLoader getIconLoader() {
57         if (mIconLoader == null) {
58             String iconPackage = getIconPackage();
59             mIconLoader = new CachingIconLoader(
60                     new PackageIconLoader(mContext, iconPackage, mUiThread, mIconLoaderExecutor));
61         }
62         return mIconLoader;
63     }
64 
getIconPackage()65     protected abstract String getIconPackage();
66 
67     @Override
getIcon(String drawableId)68     public NowOrLater<Drawable> getIcon(String drawableId) {
69         return getIconLoader().getIcon(drawableId);
70     }
71 
72     @Override
getIconUri(String drawableId)73     public Uri getIconUri(String drawableId) {
74         return getIconLoader().getIconUri(drawableId);
75     }
76 
77     @Override
createSearchIntent(String query, Bundle appData)78     public Intent createSearchIntent(String query, Bundle appData) {
79         return createSourceSearchIntent(getIntentComponent(), query, appData);
80     }
81 
createSourceSearchIntent(ComponentName activity, String query, Bundle appData)82     public static Intent createSourceSearchIntent(ComponentName activity, String query,
83             Bundle appData) {
84         if (activity == null) {
85             Log.w(TAG, "Tried to create search intent with no target activity");
86             return null;
87         }
88         Intent intent = new Intent(Intent.ACTION_SEARCH);
89         intent.setComponent(activity);
90         intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
91         // We need CLEAR_TOP to avoid reusing an old task that has other activities
92         // on top of the one we want.
93         intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
94         intent.putExtra(SearchManager.USER_QUERY, query);
95         intent.putExtra(SearchManager.QUERY, query);
96         if (appData != null) {
97             intent.putExtra(SearchManager.APP_DATA, appData);
98         }
99         return intent;
100     }
101 
createVoiceWebSearchIntent(Bundle appData)102     protected Intent createVoiceWebSearchIntent(Bundle appData) {
103         return QsbApplication.get(mContext).getVoiceSearch()
104                 .createVoiceWebSearchIntent(appData);
105     }
106 
107     @Override
getRoot()108     public Source getRoot() {
109         return this;
110     }
111 
112     @Override
equals(Object o)113     public boolean equals(Object o) {
114         if (o != null && o instanceof Source) {
115             Source s = ((Source) o).getRoot();
116             if (s.getClass().equals(this.getClass())) {
117                 return s.getName().equals(getName());
118             }
119         }
120         return false;
121     }
122 
123     @Override
hashCode()124     public int hashCode() {
125         return getName().hashCode();
126     }
127 
128     @Override
toString()129     public String toString() {
130         return "Source{name=" + getName() + "}";
131     }
132 
133 }
134